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ECS41A Datasheet (PDF) - Littelfuse

ECS41A Datasheet PDF - Littelfuse
Part No. ECS41A
Download  ECS41A Click to view

File Size   387.55 Kbytes
Page   3 Pages
Manufacturer  LITTELFUSE [Littelfuse]
Direct Link  http://www.littelfuse.com
Logo LITTELFUSE - Littelfuse
Description Current Monitoring Relays and Transducers

ECS41A Datasheet (PDF)

Go To PDF Page Download Datasheet
ECS41A Datasheet PDF - Littelfuse

Part No. ECS41A
Download  ECS41A Click to view

File Size   387.55 Kbytes
Page   3 Pages
Manufacturer  LITTELFUSE [Littelfuse]
Direct Link  http://www.littelfuse.com
Logo LITTELFUSE - Littelfuse
Description Current Monitoring Relays and Transducers

ECS41A Datasheet (HTML) - Littelfuse

ECS41A Datasheet HTML 1Page - Littelfuse ECS41A Datasheet HTML 2Page - Littelfuse ECS41A Datasheet HTML 3Page - Littelfuse

ECS41A Product details

Description
The ECS Series of single-phase AC current sensors is a universal,
overcurrent or undercurrent sensing control. Its built-in toroidal
sensor eliminates the inconvenience of installing a stand-alone
current transformer. Includes onboard adjustments for current
sensing mode, trip point, and trip delay. Detects over or
undercurrent events like locked rotor, loss of load, an open heater
or lamp load, or proves an operation is taking place or has ended.
Operation
Input voltage must be supplied at all times for proper operation.
When a fault is sensed throughout the trip delay, the output
relay is energized. When the current returns to the normal run
condition or zero, the output and the delay are reset. If a fault is
sensed and then corrected before the trip delay is completed,
the relay will not energize and the trip delay is reset to zero.
Adjustment
Select the desired function, over or under current sensing.
Set the trip point and trip delay to approximate settings. Apply
power to the ECS and the monitored load. Turn adjustment and
watch the LED. LED will light; turn slightly in opposite direction
until LED is off. Adjustment can be done while connected to the
control circuitry if the trip delay is set at maximum. To increase
sensitivity, multiple turns may be made through the ECS’s
toroidal sensor. The appropriate trip point range is determined by
multiplying the amperage load by the number of turns/passes
through the toroidal sensor. When using an external CT, select
a 2VA, 0-5A output CT rated for the current to be monitored.
Select ECS adjustment range 0. Pass one secondary wire
lead through the ECS toroid and connect the secondary leads
together.

Features & Benefits
FEATURES BENEFITS
Built-in toroidal
current sensing
Eliminates need to install stand-alone
current transformer and provides isolation from
monitored circuit
Encapsulated Protects against shock, vibration, and humidity
Adjustable mode, trip
point and trip delay Provides flexibility for use in many applications
10A, SPDT isolated
relay output Allows control of AC voltage loads



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